Question

Find the surface area of a cylinder with a base diameter of 4 in and a height of 3 in . Write your answer in terms of π , and be sure to include the correct unit.

Answer 1

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Find Radius:

Radius = Diameter ÷ 2

Radius = 4 ÷ 2 = 2 in

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Find Surface Area:

Surface Area = 2πr² + 2πrh

Surface Area = 2π(2)² + 2π(2)(3)

Surface Area = 8π + 12π

Surface Area = 20π in²

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Answer: 20π in²

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